Operation CHARM: Car repair manuals for everyone.

Component Tests and General Diagnostics

INSPECTION
1. Disconnect the PCM connector.




2. Connect the SST (104 Pin Breakout Box), or equivalent to the PCM.

SST number: 49 UNO1 130

3. Measure the voltage at each terminal with a voltmeter.
4. If any PCM terminal voltage is incorrect, check the related input or output devices and wiring. If no problem is found, replace the PCM.